[Webkit-unassigned] [Bug 156316] New: Safari 9 refuses to jump small gaps in video buffer

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=156316

            Bug ID: 156316
           Summary: Safari 9 refuses to jump small gaps in video buffer
    Classification: Unclassified
           Product: WebKit
           Version: Safari 9
          Hardware: Macintosh
                OS: OS X 10.11
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Media Elements
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: joeyparrish at google.com

When MSE/DASH content does not start at exactly 0ms, Safari refuses to play.

To reproduce in Safari 9:

1. Visit http://safari-gap-bug.shaka-player-demo.appspot.com/demo/?asset=https://storage.googleapis.com/shaka-demo-assets/_bugs/safari-non-zero-cts/stream.mpd;play

2. Open the JavaScript console.

3. Evaluate: video.buffered.start(0)

4. The buffered range starts at 83ms.  Playback is hung.

5. Playback begins if you seek to something inside the buffered range: video.currentTime = 0.1;


Try the same steps in Firefox on Mac.  You will see that the buffered range still starts at 83ms, but Firefox is willing to jump this tiny gap and play anyway.

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